Spirent Communications is a communications technology company that provides testing, measurement and assurance solutions for networks, devices and services. Its products are used to evaluate the performance, reliability, security and interoperability of communications infrastructure before and after deployment.
The company’s portfolio has included solutions for 5G and other wireless networks, Ethernet and IP networks, cloud and data-center environments, network security, positioning and location technologies, and timing systems. Spirent also provides automated testing, network emulation, service assurance and lifecycle-management tools designed to help communications service providers, network-equipment manufacturers, cloud providers and government organizations validate complex technologies.
Based in the United Kingdom, Spirent served customers internationally across the telecommunications, technology, aerospace and defense sectors. The company was historically listed in London and its American depositary shares traded over the counter in the United States under the symbol SPMYY. Spirent became part of Viavi Solutions following Viavi’s acquisition of the company in 2024.
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